21157008

素因数分解:

$2^4\times 3^1\times {\mathrm{29}}^1\times {\mathrm{15199}}^1$

素因数の和:15239

約数の個数: 40

約数和(自身を含む): 56544000

約数和(自身を除く): 35386992

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 48, 58, 87, 116, 174, 232, 348, 464, 696, 1392, 15199, 30398, 45597, 60796, 91194, 121592, 182388, 243184, 364776, 440771, 729552, 881542, 1322313, 1763084, 2644626, 3526168, 5289252, 7052336, 10578504, 21157008]

約数ペア:

[(1, 21157008), (2, 10578504), (3, 7052336), (4, 5289252), (6, 3526168), (8, 2644626), (12, 1763084), (16, 1322313), (24, 881542), (29, 729552), (48, 440771), (58, 364776), (87, 243184), (116, 182388), (174, 121592), (232, 91194), (348, 60796), (464, 45597), (696, 30398), (1392, 15199)]